Stylus

Abstract

A stylus includes a body, a carrying structure, and a tip structure. The carrying structure is disposed at the body and has a ring-shaped positioning portion, and the ring-shaped positioning portion has an axial hole. The tip structure is disposed on the carrying structure, a segment of the tip structure penetrates the axial hole, and the ring-shaped positioning portion entirely covers the segment of the tip structure along a peripheral direction of the axial hole.

What is claimed is: 
     
       1. A stylus, comprising:
 a body; 
 a carrying structure disposed at the body and having a ring-shaped positioning portion, wherein the ring-shaped positioning portion has an axial hole; 
 a tip structure disposed on the carrying structure and having a flange, wherein a segment of the tip structure penetrates the axial hole, and the ring-shaped positioning portion entirely covers the segment of the tip structure along a peripheral direction of the axial hole; 
 an elastic member, wherein the carrying structure has a first stop portion and a second stop portion opposite to the first stop portion, the elastic member is confined between the first stop portion and the tip structure, the tip structure is suitable for resisting an elastic force of the elastic member to be moved into the body and is suitable for resetting via the elastic force of the elastic member, and the flange is abutted against the second stop portion via the elastic force of the elastic member; and 
 a control circuit board, wherein the carrying structure has a carrying portion, the carrying portion carries the control circuit board, and the ring-shaped positioning portion, the first stop portion, the second stop portion, and the carrying portion are formed into a single piece, wherein 
 the ring-shaped positioning portion has a first end portion and a second end portion, the first end portion is close to the elastic member, the second end portion is tapered and away from the elastic member, and a diameter of the first end portion is greater than a diameter of the second end portion. 
 
     
     
       2. The stylus of  claim 1 , wherein the tip structure comprises a tip and a sleeve, the sleeve is sleeved at one end of the tip and penetrates the axial hole, and another end of the tip is extended out of the body. 
     
     
       3. The stylus of  claim 1 , comprising a sensing device and a trigger device, wherein the sensing device is disposed in the body, the trigger device is disposed at one end of the tip structure and faces the sensing device, and the tip structure is adapted to be moved into the body so that the trigger device is in contact with the sensing device. 
     
     
       4. The stylus of  claim 3 , wherein the carrying structure has a break hole, and the trigger device is exposed by the break hole in a radial direction of the stylus. 
     
     
       5. The stylus of  claim 3 , comprising a control circuit board, wherein the sensing device is coupled to the control circuit board, and the carrying structure carries the control circuit board. 
     
     
       6. The stylus of  claim 1 , wherein the elastic member is a spring and is sleeved at the tip structure, and two opposite ends of the spring are abutted against the first stop portion and the tip structure, respectively. 
     
     
       7. The stylus of  claim 1 , wherein the carrying structure has a break hole, and the elastic member is exposed by the break hole in a radial direction of the stylus. 
     
     
       8. The stylus of  claim 1 , comprising a cover, wherein the cover is combined with the carrying structure to cover a portion of the tip structure. 
     
     
       9. The stylus of  claim 1 , wherein the carrying portion, a portion of the tip structure and the elastic member are confined between the first stop portion and the second stop portion. 
     
     
       10. A stylus, comprising:
 a body; 
 a carrying structure disposed at the body and having a ring-shaped positioning portion, wherein the ring-shaped positioning portion has an axial hole; 
 a tip structure disposed on the carrying structure, wherein a segment of the tip structure penetrates the axial hole, and the ring-shaped positioning portion entirely covers the segment of the tip structure along a peripheral direction of the axial hole; 
 an elastic member, wherein the ring-shaped positioning portion has a first end portion and a second end portion, the first end portion is close to the elastic member, the second end portion is tapered and away from the elastic member, and a diameter of the first end portion is greater than a diameter of the second end portion; and 
 a control circuit board, wherein the carrying structure has a first stop portion, a second stop portion, and a carrying portion, a portion of the tip structure and the elastic member are confined between the first stop portion and the second stop portion, the carrying portion carries the control circuit board, and the ring-shaped positioning portion, the first stop portion, the second stop portion, and the carrying portion are formed into a single piece.